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<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
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<body>

  <ul id='list'></ul>
  <input type="text" id='message' placeholder="请输入消息" />
  <button id='send'>发送</button>
  
  <script src="./src/js/index.js"></script>
</body>
</html>